Revert "Work around a Mac specific QSettings bug for the moment."

Workaround is no longer needed and causes trouble with cyrillic characters.

This reverts commit 00142e4c.

src/app/main.cpp

@@ -187,11 +187,6 @@ int main(int argc, char **argv)
     // Must be done before any QSettings class is created
     QSettings::setPath(QSettings::IniFormat, QSettings::SystemScope,
             QCoreApplication::applicationDirPath()+QLatin1String(SHARE_PATH));
-#ifdef Q_OS_MAC
-    // Work around bug in QSettings
-    QSettings::setPath(QSettings::IniFormat, QSettings::UserScope,
-            QDir::homePath()+"/.config");
-#endif
     // keep this in sync with the MainWindow ctor in coreplugin/mainwindow.cpp
     const QSettings settings(QSettings::IniFormat, QSettings::UserScope,
                                  QLatin1String("Nokia"), QLatin1String("QtCreator"));